Philosoraptor

Making a circular screen with square pixels is very difficult, but that is a very good question indeed...Hmmm...

The lens simply focuses the light on a rectangular sensor. The lens itself doesn't actually take the picture.

(; -__-) Just got to suck the joy out of everything...

Not really, but Googol did seem like he legit didn't know, so I just thought I'd throw it out there.